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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Lihue-Kapaa

Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.

MORE ABOUT THIS CONTAMINANT

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016N/A00N/A
2017ND20ND
2018ND350ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for alachlor, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-17C14-03-0126AND
2014-10-06C14-10-0060ND
2015-09-30201510020546ND
2015-12-24201512290430ND
2017-04-12ND
2017-07-17ND
2018-01-16C18-01-0038ND
2018-01-16C18-01-0039ND
2018-01-16C18-01-0037ND
2018-01-16C18-01-0040AND
2018-01-17C18-01-0064AND
2018-01-17C18-01-0041ND
2018-03-05C18-03-0042ND
2018-03-05C18-03-0033AND
2018-03-06C18-03-0044ND
2018-03-06C18-03-0043ND
2018-03-07C18-03-0095ND
2018-03-07C18-03-0096ND
2018-03-19C18-03-0131ND
2018-03-19C18-03-0133ND
2018-03-19C18-03-0132ND
2018-07-10C18-07-0131ND
2018-07-10C18-07-0164ND
2018-07-10C18-07-0160ND
2018-07-10C18-07-0162ND
2018-07-10C18-07-0163AND
2018-07-10C18-07-0161ND
2018-07-10C18-07-0133ND
2018-07-12201807000000ND
2018-07-12201807130880ND
2018-07-23C18-07-0324ND
2018-07-23C18-07-0323ND
2018-07-23C18-07-0325ND
2018-07-24C18-07-0328ND
2018-07-24C18-07-0326ND
2018-07-24C18-07-0327ND
2018-07-25C18-07-0358AND
2018-07-25C18-07-0357ND
2018-08-07C18-08-0119ND
2018-10-08C18-10-0043ND
2018-10-10C18-10-0046ND